Paper/nms-patches/DataInspectorBlockEntity.patch

--- a/net/minecraft/server/DataInspectorBlockEntity.java
+++ b/net/minecraft/server/DataInspectorBlockEntity.java
@@ -32,7 +32,8 @@
                 boolean flag;
 
                 if (s1 == null) {
-                    DataInspectorBlockEntity.a.warn("Unable to resolve BlockEntity for ItemInstance: {}", new Object[] { s});
+                    // CraftBukkit - Remove unnecessary warning (occurs when deserializing a Shulker Box item)
+                    // DataInspectorBlockEntity.a.warn("Unable to resolve BlockEntity for ItemInstance: {}", new Object[] { s});
                     flag = false;
                 } else {
                     flag = !nbttagcompound2.hasKey("id");